CN105829557A - Patterned rolled zinc alloy sheet - Google Patents

Patterned rolled zinc alloy sheet Download PDF

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Publication number
CN105829557A
CN105829557A CN201480060118.1A CN201480060118A CN105829557A CN 105829557 A CN105829557 A CN 105829557A CN 201480060118 A CN201480060118 A CN 201480060118A CN 105829557 A CN105829557 A CN 105829557A
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CN
China
Prior art keywords
plate
zinc
white rust
reflectance
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201480060118.1A
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Chinese (zh)
Other versions
CN105829557B (en
Inventor
斯蒂芬·马诺夫
克里斯托弗·比斯里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
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Furukawa Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN105829557A publication Critical patent/CN105829557A/en
Application granted granted Critical
Publication of CN105829557B publication Critical patent/CN105829557B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B07B1/26—Revolving drums with additional axial or radial movement of the drum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C22C18/02—Alloys based on zinc with copper as the next major constituent
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/08—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of metal, e.g. sheet metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
    • E04D3/16—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
    • E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/12—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of metal or with an outer layer of metal or enameled metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/165—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon of zinc or cadmium or alloys based thereon

Abstract

The present disclosure concerns specially patterned zinc sheets for coverage and protection of building roofs and facades. A recurrent problem linked with the use of zinc sheets in building applications is the development of white rust. As the complete avoidance of white rust is difficult to achieve, additional means to reduce its impact are most welcome. It is now proposed to limit the visibility of white rust by providing a camouflaging pattern on the surface of the zinc. The invention more specifically concerns an un-weathered rolled zinc alloy sheet with at least one patterned face having an optical reflectivity that varies from region to region, characterized in that said regions are of a pseudo- random shape, having characteristic dimensions in the range of 0.1 mm to 10 cm; and in that the optical reflectivity, when measured across the sheet in any arbitrary direction, presents a specular reflectivity RMS deviation of more than 3 GU and/or a diffuse reflectivity RMS deviation of more than 0.2. A laser-aided imprinting process is disclosed to generate suitable camouflage patterns on the zinc.

Description

Patterning rolled zinc alloy plate
Technical field
The present invention relates to the zinc of special pattern for covering and protect building roof and exterior wall Plate.
Background technology
One recurrent problem relevant to use zine plate in Application in Building is sending out of white rust Exhibition.White rust is the corrosion product of a kind of porous, and it includes the hydroxide of zinc, carbonate and water, Also referred to as the wettest deposit stain (wet storage stain).When new zinc surface is a moist closing Environment in when limited amount oxygen is together with carbon dioxide storage, white rust frequently develops. Similarly, when being in nature outside atmosphere environment after arrangement, white rust also can develop rapidly, now Zinc surface does not also have sufficient time to form the natural oxidizing layer providing good corrosion protection.
White rust usually starts at the white fleck of a diameter of 0.1-1mm.These speckle meetings afterwards The longest more big and formed larger sized white speckle.These specklees have the position seeming random And shape.
White rust will not endanger or otherwise shorten the life expectancy of zine plate.But, it damages Attractive in appearance.It can reduce the captivation of product, and results even in people to product integrity Suspect.
A lot of suggestion has been had to prevent white rust at present.Common suggestion is at the bar suitably ventilated Store under part.But strict condition of storage is difficult to ensure that, is especially sent out by zinc After goods is to client.Therefore, conventional surface passivating treatment or coating.Although these process really can Prevent white rust, but they can interfere with the weathering of zinc.This greatly delayed Weathering is that most of anti-white rust protection processes less desirable side effect.
Summary of the invention
There is provided herein a kind of diverse method: owing to being difficulty with avoiding completely white rust, Therefore using extra method is most popular to reduce the impact of white rust.Now propose by There is provided a kind of pattern of covering up to limit the observability of white rust on the surface of zinc.
It must be noted that be once externally exposed in atmosphere, weathering will be started, and This also can reduce the observability of white rust over time.The present invention relates to harsh output therefore It is still in non-air slaking or the zine plate of unaged state, thus does not also grow autoxidation top layer. It is true that this new product needs also exist for having suitable outward appearance, no matter it is to see its position from afar Time on roof or exterior wall, or when craftsman carries out manual process in instrumentation.
More particularly it relates to an unweathered rolled zinc alloy plate, its have to Few a kind of optical reflectivity is with the patterned surface of regional change, it is characterised in that described region Having pseudorandom shape, its characteristic size is in the range of 0.1mm to 10cm；And when with When any direction measures whole plate, described optical reflectivity is expressed as the RMS of specular reflectivity (all Root) deviation more than the RMS deviation of 3GU and/or diffuse-reflectance rate more than 0.2.According to ISO 7668 Measure specular reflectivity, and measure diffuse-reflectance rate according to ISO 7724/1.
Described product shows reflectance change at random between the region of whole sheet material.Reflectance This change must adapt with needing the size of white rust speckle covered up.In practice, uncommon Hope and cover up the fleck of about 0.1mm, the form in the big region to a size of 10cm or bigger White rust.Cover up pattern and need that there is similar characteristic size.
Characteristic size refers on the reflectance map of described plate between continuous maximum and minima Between detectable darker area or the linear dimension of brighter areas.
The reflectance of described change can also be defined as containing at 100cm-1-0.1cm-1Scope Interior spatial frequency component.Preferably scope is 10cm-1To 0.1cm-1.This definition is based on described A kind of selection of characteristic size.
The pseudorandom shape in described region is also a basic feature.The pattern repeated will be against guarantor Stay the purpose of product natural quality.But, the pattern of long-range (being greater than 2 meters) repeat be Can be tolerated, because when product is cut and is placed on roof or exterior wall in a usual manner, They are the most inconspicuous.Similarly, the repetition (e.g., less than 0.1mm) of minimum distance also will not There is harmful effect, because they are the most visible for naked eyes.
Pseudorandom refer to position and pattern be determine in process of production (such as based on use Generate random number algorithm).
Described cover up pattern should make the change of optical reflectivity have be enough to effectively to cover white rust or The amplitude of other surface defects.Although aforementioned RMS deviation is the most enough, but preferably value is Specular reflectivity RMS deviation is more than 0.5 more than 5GU and/or diffuse-reflectance rate RMS deviation.
These changes all can be by using the value of conventional commercial device measuring.These equipment exist On surface, about 1 centimetre connects the sampling of 1 centimetre and reports reflectance.It means that substantially 1 The change of the yardstick below centimetre will be underestimated.
Described RMS deviation should be preferably at 100cm-1To 0.1cm-1In the range of, more excellent Select 10cm-1To 0.1cm-1In the range of consider spatial frequency time reach.
The optical appearance on surface is the result of complicated phenomenon.The reflection of light actually depends on a lot Factor, predominantly: the angle of illumination, visual angle, the wavelength (or frequency spectrum) of light and polarization. Possible diffraction effect will make situation more complicated.For trnaslucent materials, penetrate deep Degree also plays an important role.
But for the present invention, just be enough to characterize surface reflectivity by direct reflection and diffuse-reflectance Feature.It is true that both patterns can hide white rust individually.
The Grossmeters (Micro Gloss) that model can be used to be AG-4446 is measured described Specular reflectivity.This instrument uses 3 kinds of geometries, with light angle 20,60 and of standard 80 °, tackle various surface, and meet ISO 7668.One preferable matte surface produces The value of 0GU (gloss unit), and the black surface of high polishing produces the value of 100GU.For The press polished surface of non-black, this scale allows the value higher than 100GU.
Use model is that the spectrophotometer measurement of CM-2500d (Konica Minolta) is unrestrained anti- Penetrate rate, meet ISO 7724/1.Described reflectance is with the brightness (L*) in CIELAB color space Representing, in the range from 0-100 grade, wherein black is 0 and white is 100.Described light source It is to be the working standard light source defined by international lighting association (CIE) according to D65, D65.
Product disclosed herein shows specular reflectivity and/or the diffuse-reflectance rate of change.Described instead Rate of penetrating changes at random along any linear measurement path, and has enough amplitude excursions and cover White rust.The RMS deviation being used in around measuring route meansigma methods carrys out quantized amplitudes deviation.
The preferably diffuse-reflectance rate zine plate surface more than 75.It is true that this brighter Lycoperdon polymorphum Vitt Tone is conducive to covering up white rust.Use the method identical with the pattern of those impressing change reflectance This effect can be obtained.
Although the color change of whole zine plate can help to hide white rust, but still preferably retains sky So tone of gray of zinc.Ash is a species saturation low " color " in color space.Use The method identical with the pattern of those impressing reflectance changes can obtain this result.The most preferred Zine plate surface have in hue-saturation-brightness (HLS) color space less than 20% saturated Degree.
Occur on zine plate surface striped be routine relate to the production technology of rolling inevitably after Really.These rolling stripeds impart the anisotropy that sheet material is intrinsic, clearly illustrate rolling side To.The presence of which can cause increasing the weight of other surface defects, such as white rust, cut and fingerprint. Its reason is that artefact below is the most isotropic, and therefore with stripe-shaped in contrast. Therefore preferably so that striped no longer highlights or even disappears.Use and those impressing reflectance changes The identical method of pattern can obtain this result.
The visibility that other advantages are cut, fingerprint or other spots of this product is relatively low.Class As, the color of certain limit or the change of shade or slight out-of-flatness can be covered up.
It is preferably used and prepares zine plate surface according to the Zn-Cu-Ti alloy of EN 988 standard, because This is the specifications of quality standard for building field.
There are some means so that the reflectance of local of zine plate is greater or lesser.These handss Section can be divided into: optics, chemistry, machinery or heat.
Uneven coating (it is characterized by the thickness with change or color) can be used to zinc Pattern needed for imparting.Although not getting rid of this method, but from the point of view of Expected Results, and Do not recommend.It practice, coating, particularly thick coating, material will be delayed inadequately Weathering.
It is equally useful the change of the etching solution that make use of random distribution over the plates uneven Learn etching.Although not getting rid of this system, but it is difficult to accurately control technique also And be difficult to repeat.
Mechanical means, such as multistep embossing, is highly suitable for significantly changing the superficial makings of zine plate Therefore reflectance.
By the use of thermal means, such as, by using high-power thermal source, such as laser instrument, be equally applicable to The pattern that surface imprint is almost the most required.
Suitably microstructure can be characterized as: more than the average surface plane of described plate or with The continuous print projection occurred in the range of lower 1 to 100 μm and pit.These microstructures are by office The optical reflectivity on change surface, portion.The surface of described plate adjusts the class of these microstructures Type or density can correspondingly change luminous reflectance.
Detailed description of the invention
The following examples describe the present invention.
According to method as described below, by carrying out laser pulse, unweathered EN 988 is rolled One surface of Zn-Cu-Ti plate carries out patterned process.
Employing TruMark station 5000 type laser index carving work station, this laser index carving works Station is equipped with a TruMark 6020 laser Nd-YAG source launched under 1064nm.Should The average output power of laser is 17W.Spot diameter is 116 μm.It is with the speed of 10-60Hz Rate carries out pulse, therefore creates the pulse that energy range is 1.5-0.3mJ.Between pulse Optics load the time (optical charging time) minimizing, the energy of individual pulse along with The raising of repetition rate and decline.This pulse duration is fixed as 5 μ s.
Having been demonstrated that, above-mentioned energy level can form little crater or pit on the surface of zinc. The diameter range of these pits is 10 μm-100 μm, corresponding to the energy range of 0.3-1.5mJ.
Different shades can be obtained: high-energy obtains bigger pit by adjusting the energy of pulse And dark outward appearance is formed on surface.
Different shades is equally obtained: close one group by dithering process (dithering) Pit can obtain darker outward appearance than sparse scattered pit.Not only by adjusting, repetitive rate is permissible This is controlled, and equally this is controlled by changing linear scanning velocity. Scanning speed is the most suitable at 0.2-10m/s.
The low-yield pit of a large amount of tight spacings can reduce the natural gloss of metal.It also will be covered Rolling striped.
Foregoing is shown in FIG, and Fig. 1 shows the surface obtained by microphotograph Outward appearance.Shown in pattern be by use the pulse frequency of 45kHz, the linear scanning velocity of 2m/s, Obtain with the line space (also referred to as sweep span (hatch spacing)) of 50 μm.
Use pseudo-random patterns generate the precalculated desired puppet being transferred on zine plate with Machine pattern.After the number format being converted to compatibility, it upload the data to laser index carving work station.
This work station include for progressively scan zine plate and according to desirable pattern pulse laser beam needed for All software and hardwares.In the present embodiment, use equipment manufacturers be used for imprint metal Standard conditions.
Fig. 2 shows the precalculated pseudo-random patterns being imprinted on paper.
Fig. 3 shows the photo of the pattern transferring to zine plate.Although brightness and contrast beats with paper Print difference, but its result be enough to cover white rust.
The specular reflectivity of the zinc obtained is about 9.9GU (measuring under 60 °), RMS deviation For 4GU.
The surface of obtained impressing product can carry out chemical treatment, further such as phosphate transfection Change.This improves its corrosion resistance while retained product overall performance.

Claims (6)

1. covering for building and the non-air slaking rolled zinc alloy plate of protection, it has at least one Plant patterned surface, there is the optical reflectivity with regional change, described zinc on said surface Alloy sheets is characterised by:
-described region has pseudorandom shape, and its characteristic size is in the scope of 0.1mm to 10cm In；And
-when measuring whole described plate with any direction, it is anti-that described optical reflectivity shows minute surface The RMS deviation penetrating rate is more than 0.2 more than the RMS deviation of 3GU and/or diffuse-reflectance rate.
Zine plate the most according to claim 1, it has be stamped on patterned surface micro- Seeing structure, described patterned surface includes the region with the microstructure of high light reflectance Region with the microstructure with relatively low optical reflectivity.
Zine plate the most according to claim 2, it is characterised in that: by projection and pit One or both form the microstructure of described impressing, described projection and pit are positioned at described In the range of the average surface above and below 1-100 μm of plate.
4. according to the zine plate according to any one of claim 1-3, it is characterised in that: described plate The average optical reflectance of patterned surface there is the diffuse-reflectance rate value higher than 75.
5. according to the zine plate according to any one of claim 1-4, it is characterised in that: described plate The average staturation level of patterned surface have at colourity-saturation-brightness (HLS) color Space is less than the value of 20%.
6., according to the zine plate according to any one of claim 1-5, described kirsite is according to EN The Zn-Cu-Ti alloy of 988 standards.
CN201480060118.1A 2013-10-31 2014-10-31 Pattern rolled zinc alloy plate Active CN105829557B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13290265.1 2013-10-31
EP13290265 2013-10-31
PCT/EP2014/073476 WO2015063274A1 (en) 2013-10-31 2014-10-31 Patterned rolled zinc alloy sheet

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CN105829557A true CN105829557A (en) 2016-08-03
CN105829557B CN105829557B (en) 2018-10-19

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US (1) US10494812B2 (en)
EP (1) EP3063306B1 (en)
KR (1) KR102111187B1 (en)
CN (1) CN105829557B (en)
AU (1) AU2014343653B2 (en)
CA (1) CA2927551C (en)
CY (1) CY1122637T1 (en)
DK (1) DK3063306T3 (en)
ES (1) ES2771354T3 (en)
HR (1) HRP20200094T1 (en)
HU (1) HUE048799T2 (en)
LT (1) LT3063306T (en)
NZ (1) NZ719142A (en)
PL (1) PL3063306T3 (en)
PT (1) PT3063306T (en)
RS (1) RS59860B1 (en)
SG (2) SG11201603392VA (en)
SI (1) SI3063306T1 (en)
WO (1) WO2015063274A1 (en)

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CN1609246A (en) * 2004-09-11 2005-04-27 戴国水 Zinc-aluminium alloy silk containing rare earth and producing process thereof
CN101530921A (en) * 2008-03-13 2009-09-16 中国科学院合肥物质科学研究院 Nano-zinc oxide hollow sphere and preparation method thereof

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AU2014343653A1 (en) 2016-05-19
NZ719142A (en) 2018-10-26
CA2927551C (en) 2022-04-05
RS59860B1 (en) 2020-02-28
ES2771354T3 (en) 2020-07-06
US10494812B2 (en) 2019-12-03
SG10201803063QA (en) 2018-06-28
CA2927551A1 (en) 2015-05-07
HUE048799T2 (en) 2020-08-28
US20160265225A1 (en) 2016-09-15
CY1122637T1 (en) 2021-03-12
HRP20200094T1 (en) 2020-04-03
KR20160082532A (en) 2016-07-08
LT3063306T (en) 2020-02-10
CN105829557B (en) 2018-10-19
PL3063306T3 (en) 2020-05-18
WO2015063274A1 (en) 2015-05-07
SG11201603392VA (en) 2016-05-30
DK3063306T3 (en) 2020-02-10
AU2014343653B2 (en) 2018-08-02
KR102111187B1 (en) 2020-05-14
EP3063306A1 (en) 2016-09-07
SI3063306T1 (en) 2020-03-31
PT3063306T (en) 2020-02-21
EP3063306B1 (en) 2019-11-13

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